| key specs |
| Camera Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 16.05 MP | 14 MP |
| Sensor Type | MOS | CCD |
| Display Type | OLED | TFT LCD |
| Display Size | 3 inch | 3 inch |
| Battery Type | Lithium ion | Lithium ion |
| Touchscreen | Yes | - |
| general |
| Brand | Panasonic | Olympus |
| Model | Lumix DMC GH4GC 16.05MP DSLR Camera | SP 820UZ 14MP DSLR Camera |
| Model Name | Lumix DMC GH4GC | SP 820UZ |
| Model Number | DMC GH4GC | - |
| Series | Lumix | - |
| Color | Black | Black |
| Type | DSLR Camera | DSLR Camera |
| Effective Pixels | 16.05 MP | 14 MP |
| Dimensions(WxHxD) | 132.9 x 93.4 x 83.9 mm | 105.9x 75.9x 73.5 mm |
| Weight | 560 GM | 413 GM |
| Face Detection | Yes | Yes |
| Wide Angle | Yes | - |
| Maximum Burst | Yes | - |
| Temperature | 32 to 104 | 0 to 40 |
| Ports | USB, micro HDMI | - |
| Accessory Shoe | Hot Shoe | - |
| sensor features |
| Sensor Type | MOS | CCD |
| Sensor Size | 17.3 x 13.0 mm | 1/2.3 inch |
| Maximum ISO | 25600 ISO | - |
| Maximum FPS | 96 | - |
| Sensor Technology | Live MOS Sensor | - |
| lens features |
| Lens Mount | Micro Four Thirds mount | - |
| Digital Zoom | 2x | 4x |
| Optical Zoom | 4x | - |
| Color Filter | Primary color filter | Primary RGB Color Filter |
| Dust Reduction | Yes | - |
| Focal Length | - | 4.3 - 154.8 mm (35 mm Equivalent to 24 - 864mm) |
| Aperture Range | - | F2.9 - F5.7 |
| Manual Focus | - | Yes |
| viewfinder features |
| View Finder | Yes | - |
| View Finder Type | OLED Live View Finder 2,359K dots | - |
| Viewfinder Coverage | 100% | - |
| Viewfinder Magnification | Approx. 1.34x / 0.67x 35mm camera equivalent with 50 mm lens at infinity -1.0 m-1 | - |
| Viewpoint Dioptric Adjustment | -4.0 - +4.0 dpt | - |
| Viewfinder Eye Point | 21 mm | - |
| focus features |
| Focus Mode | AFS Single / AFF Flexible / AFC Continuous / MF | - |
| Focus Range | EV -4 - 18 ISO100 equivalent | - |
| Auto Focus | Yes | Yes |
| Metering Modes | Multiple / Center Weighted / Spot | Multi-segment, Center Weighted, Spot Metering, ESP Light Metering |
| White Balancing | Auto / Daylight / Cloudy / Shade / incandescent / Flash / White Set 1, 2, 3, 4 / Color temperature setting | Auto, Preset Daylight, Tungsten, Fluorescent 1, Sunlight, One Touch WB |
| Other Focus Features | One Shot AF, Shutter AF, Half Press Release, Quick AF, Continuous AF during motion picture recording, Eye Sensor AF, AF+MF, MF Assist, Touch MF Assist, Focus Peaking, Touch AF/AE Function, Touch Pad AF, Touch Shutter | TTL iESP with Contrast Detection |
| exposure features |
| Exposure Mode | Program AE, Aperture Priority AE, Shutter Priority AE, Manual | - |
| AE Lock/Exposure Lock | Yes | - |
| Spot Meter | Yes | - |
| Exposure Compensation | 1/3 EV step | - |
| Manual Exposure | Yes | - |
| Dynamic Range Adjustment | Yes | - |
| shutter features |
| Shutter Type | Focal-plane shutter | - |
| Shutter Speed | Still image Bulb Max. 60 minutes, 1/8,000 - 60 | 1/2 sec sec |
| flash features |
| Built-in Flash | Yes | Yes |
| Flash Modes | Auto*, Auto/Red-eye Reduction*, Forced On, Forced On/Red-eye Reduction, Slow Sync., Slow Sync./Red-eye Reduction, Forced Off * For iA, iA+ only. | Auto, Red-eye Reduction, Fill-in, Off |
| Flash Compensation | 1/3EV step 3EV | - |
| Other Flash Features | TTL Built-in-Flash, GN12 equivalent ISO100 | - |
| image features |
| Aspect Ratio | 43, 32, 169, 11 | 40900 PM |
| Gross Pixel | 17.20 MP | - |
| Still Image Size | 4608x3456L / 3264x2448M / 2336x1752S / 1824x1368 with 3D lens in Micro Four Thirds system standard | - |
| Live View Shooting | Yes | - |
| Image Format | - | JPEG, RAW, EXIF 2.21, DPOF, DCF |
| Red Eye Reduction | - | Yes |
| Image Stabilizer | - | Yes |
| Image Sizing | - | 4288 x 3216 (14 M) |
| Picture Angle | - | 24 mm Wide-angle |
| Other Image Features | - | 4288 x 3216 (14 M), 3264 x 2448 (8 M), 2560 x 1920 (5 M), 2048 x 1536 (3 M), 1600 x 1200 (2 M), 1280 x 960 (1 M), 640 x 480 (VGA), 4288 x 2416 (169), 1920 x 1080 |
| display features |
| Display Type | OLED | TFT LCD |
| Display Size | 3 inch | 3 inch |
| Display Resolution | Approx. 1036K dots | - |
| Touch Screen | Yes | - |
| LCD Display | OLED | - |
| LCD Display Image Resolution | Approx 1036K dots | - |
| connectivity features |
| Wifi | Yes | - |
| Wireless Connectivity | IEEE 802.11b/g/n, 2412 MHz - 2462 MHz 11 ch, Wi-Fi / WPA / WPA2, Infrastructure mode, WPS, Wi-Fi Direct | - |
| HDMI | - | Yes |
| USB | - | Yes |
| storage and power features |
| Card Type | SD Memory Card, SDHC Memory Card, SDXC Memory Card Compatible with UHS-I UHS Speed Class 3 standard SDHC / SDXC Memory Cards | SD / SDHC / SDXC, Eye-Fi Card Compatible |
| Power Requirement | 7.2V | - |
| Batteries Included | Yes | - |
| Battery Type | Lithium ion | Lithium ion |
| Battery Life | Approx. 530 images with H-HS12035 | - |
| Inbuilt Memory | - | 14 MB |
| Upgradable Memory | - | Yes |
| audio and video features |
| Microphone | Stereo | - |
| Speaker | Monaural | - |
| Video Resolution | 3328x2496 | - |
| Video Quality | Full HD | - |
| Looping Video | Yes | - |
| Frame Rates in Video Modes | 30fps | - |
| Audio Features | - | AAC |
| Video Format | - | MPEG-4 |
| Audio Video Interface | - | Audio / Video Output |
| modes and functions features |
| HD Support | Yes | - |
| Delete Function | Yes | - |